body{
    /* background-image: url(imgs/s1.jpg);
    background-repeat: no-repeat;
    background-position: left; */
    /* background: url(imgs/s1.jpg) no-repeat right; */
}
a{text-decoration: none;}
ul{list-style: none;}
/* h1.link{}
p.link{} */
/* 伪类选择器 */

.link a:link{
    color: red;
}
.link a:visited{
    color: #ccc;
}
.link a:hover{
    color: #00f;
    text-decoration: underline;
}
.link a:active{
    color: #0f0;
}


.nav-list{
    background-color: #ccc;
    /* list-style-type: circle; */
    /* list-style-image: url(https://www.hebtu.edu.cn/template/0de2d533795b48688b0776bfade53f5a/20140828143712866/images/arrow_right.gif);
    list-style-position: inside; */
    /* list-style-image: url(imgs/s1.jpg); */
}
.nav-list li{
    background:rgb(76, 31, 241) url(imgs/arrow_right.gif) no-repeat 10px center;
    line-height: 50px;
    text-indent: 40px;
    color: #fff;
}
.nav-list li:hover{
    background-color: red;
}